Command line error "The system cannot find the drive specified."?

Question

Command line

Good afternoon!
Suddenly an error appeared:
Microsoft Windows [Version 10.0.18362.535]
(c) Microsoft Corporation, 2019. All rights reserved.
C:\Users\qua>C:\Python\Weather1.py
The system cannot find the drive specified.
I'm trying to open Python code through the command line.
Everything always worked, this is the first time.
Google is not helping yet

Answer 1

"C" Cyrillic

Answer 2

Vladimir Anatolyevich, please note that the use of Cyrillic and long file names for many Unix utilities is fatal.
Also check the register and auto-switch.
And check the paths that are set in PATH
Win + R
cmd
python -v
echo %PATH%
Look at the command output, the paths may have been "beaten".